added todo list

todo.md

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+# Functional
+- Up-direction maxes at -50 instead of 100
+- Tracking lag real issue
+
+## QoL
+- Fine tuning the tracking speeds to be non-linear, make sure the pi doesn't have that speed cap (remember could be expecting 6v max speed).
+- During connection waits, add loading dots
+
+
+## Future ideas
+- person recognition